Hay loader



Pafentedocr. 5, 1.926. Sts' AVAILABLE COPY UNITED STATES PATENT OFFICE.

CALVIN` R. DAVIS, or Rocxronn, IL LINoIs, AssIGNoR rro EMERSON-BRANTINGHAM comPANY, or nocxronn, I LLINoIs, A CORPORATION or LLLINoIs.

HAY LOADER.

Application led March 12, 1925. Serial No. '14,874.

This invention relates to 'hay loaders and has for its primary object the provision ofnnproved means for raising and lowering the delivery end of the elevator frame for .the purpose of obtaining a low delivery of the .hay ontothe rack when starting to load and subsequently obtaining 'a higher point of delivery as the loading progresses. The principal advantage is that the hay delivery is closer to the rack than with those constructions having a fixed or rigid elevator frame which delivers at all times from the highest point with the result thatthe hay is trequentlyblown away after delivery and before it reaches the rack, especially during,r thecarly stages of the loading.

My invention contemplatesrn'iore particularly, the provision of a simple and practical device for raising and lowering the delivery1 end of an elevator frame upon and with respect to the frame proper and for locking said delivery end either in the elelvateclA position or invone or more interme diate positions. .5.25

Fig. 2 is a fragmentary top view of the` parts shown in Fig. 1 taken to the planle of said frame;

Figs. 3 and 4 are fragmentary side views looking at the opposite ends of the crank device for raising and lowering the delivery end of the elevator frame; and

Fig. 5 is a detail section taken on the line 5-5 of Fig. 2.

Inasmuch as my invention relates only to the construction of the delivery cnd of a perpendicular hay loader elevator and to the means for.

raising and lowering this end, I have deemed it advisable to show Ain the drawings only thesel parts. It will be understood that my l invention is not confined to any particular frame construction nor to the construction herein disclosed of the elevator frame and the movable delivery end section thereof, except as especially pointed outin the claims.

The only parts of the main frame shown in the drawings are uprights in the form of angle iron bars 7 and 8 and upwardly inclined angle iron side bars 9 and 11 secured at their upper ends by bolts 12 to the upright barsl 7 and. 8 respectively. These bars,

,located at the sides of the elevator frame,

constitute the uppermost',- part of the main frame and provide the immediate; support for the upper portion of theelevator frame and the movable delivery end section. of said elevator 'fi-ame. Said upright frame bars 7 and 8 are joined and held in rigid relative relation by a frame cross-bar 13 the-ends of which are secured to the upright bars by bolts 14. y

The elevator frame comprises main carrier tracks-or rails 15v and 16 preferably in the form of angle iron bars arranged with one of the flat angles'uppermost to providetracks for the endless elevating carrier des-y ignated generally by 17. Said main track. bars terminate at their upper ends-just above the main frame cross-bar 13 and are suitably secnred thereto as by bolt-s4 18. Suitable bracingl and tie connections (not shown) are -provided for properly 'support-ing the main track bars on the main frame. Y

The delivery end of the elevator -frame comprises a movable end section or continuation of .the mai-n track bars pivotally mount ed at the juncture therewith and-'adapted' to be swung upon such mounting to raise and lower the delivery end. In this instance, the movable end section comprises delivery end track bars 19 and 21 held in rigid spaced relation' by intermediate cross-bars and braces 22. These tracks 19 and 21- are similar in shape to the main tracks 15 and 16 and are in longitudinal 'alignment therewith so as to form a continuationof the main elevator frame. To each track 19 a'nd 21 is secured by bolts 23 a plate 24 pivotally connected at 25 to an angle bracket 426 secured to the frame cross-bar 13, th'us establishing the pivotal mountingr ofthe delivery end section upon the main 'part of. the elevator frame. In order to provide continuous track surface for the'carrier' past the'break between the track sections each plate 24 is extended downwardly as at 27l to overlap the break and is confined at its lower end lby a guardplate-28 securedito the adjacent main track bars.

The endless carrier 17, of any suitable or preferred const-ructioi'u* is trained at -its upper end over pulleys 29 mounted on a shaft 31 which is suitably supported by adjustable brackets 32on the uppermost end ofthe track bars 19 and 21. It will be maniestthat the upper reach of the carrier rides on the track bars of the mainand vdelivery end sections of the elevator frame at all s times, vand that saiddelivery end section is adaptedto be swung downwardly from the' full line position ishown in Fig. 1 tothe 1l' dotted line position without disturbing or interfering with theA function of the carrier,`

the lowerreaeh ofv which is guided overA idler` pulleys 33. j -v l In order to retain the hay on thedelivery 'iend sectionjfrom sidewise displacement in all positions of said section,-I have providedA movable side boards 34 which are ivoted at l35 on the upper ends of the'main side boards '36 in turn secured to the' upright' frame bars 7 and 8. Tie links 37 pivotally connect the movable side boards 34 to the.movable' track hars 19 and 21 and hold said side boards in` proper relation to' the'movable -end section in all positioniatofV the latter.

The means for raising and lowering the delivery end of the elevator frame will now be \describe'd'. This means comprises, generally.

stated, an operating member preferably, but

.,not necessaril inthe form of a hand crank connectedwic the delivery end section and adaptedto lock 'beyond a. dead center posi'- tion for n oldin vit-in the elevated psition, andl a" counte'- alancing means such as a coiledvspiral spring for aiding in raising said dehvery end section. -Said means alsol -includes, but not essentially, provision such as a ratchet device for holding the deliveryend section in one or more intermediate positions. lIn the preferred -embodiment', the

hand crank 38 is integral withfa supporting p rock-shaft-39 mounted in brackets 41 and A 42 fixed to the inclined side bars 9 and 11,v

respectively, of the main frame atan elevation within convenient reach of anoperator standing on the ground. On'the end of the rock-shaft opposite from the crank 38 is' -fined a crank arm 43 in the same angular plane .as the hand crank. The hand crank 3.8 and crank,ar in 43 are respectively attached to the upper or outer end of the de- .livery endsection by means of a flexible connection com rising a link 44 Aconnected to the crank e ement, a chainsection 45 .'trained over a; guide pulley 46 mounted on the upper endof the adjacent upright frame bar 7 or A8,.as'the casemay be,l and a link 47' connected vto the adjacent end of the upper carrier shaft 31. Manifestly, the deliyery-end section may be raised and lowered by manipulation of the hand crank 38. AS

shown in'Fig.. 4 the hand crank 38 has been swung 'in a counter-clockwise direction to elevate the delivery end section to the highest position and has moved slightly beyond a dead center position limited by fixed stops 48 thereby locking the delivery end 'of the conveyer in the highest position. In other words, the pivoted points 49 of the connecting links have been carried beyond the center of the rock-shaft 39 and the ,weight of the delivery end section translated into upward pull on the links 44 holds the latter against the stops 48.

Inorder to'eounter-balanee to a substanl 1 tial degree the lweight of the delivery end section and'to aid in raising. it lfemploy a coiled spiral spring 51 on the rock-shaft 39 con nected at one end 52 to a fixed part and at its opposite end 53 to a part 54 fixed but rotatably adjustable-upon and-with respect to the rock-shaft 39. In this instance,the part 54 has a clutch coi'i'nection with a complemental clutch part 55 secured to the rock-shaft 39. By reason of the clutch connection thus provided the spring '5L-may be put under' the desired tension 'andwill function. to

counter-balance'the weight of the 'delivery end-sections, as will be obvious.' This pres sure likewise tendslto' hold the crank menii bers in the lockedfposition.'

-In the use .ofmy invention, when starting to loa-d, the delivery -end of the elev'fi'- tor frame will be droppedto the lowestI pcf;

y sition shown in dottedlines in Fig. 1, simply lo c by'swingi'ng the hand crank 38 forwardly beyond the deadcenter position, that is, in it cloekwisedireetion 4viewing' Fig. 4. -A low hay delivery lwill thus be obtained; and

when the load is high enoughthe attendant' on the' load will take hold of' the delivery end of the movable section and-swing it upwardly to the highest psition at which it will be automatically locked by reason of the construction. above describedfor this delivery end section in successive interinediate ositions. If these 'positions are not desire the pawlmay be swung ina clock- 'wise direction where it hangs in an .`inoperative position so as' not to function.,

It will be manifest to those familiar with this art that the improvement disclosed herein provides a simple and practical means for accom lishing the purpose intended;v

-that the raising of the delivery end section may -beaceomplished fivithoat the necessity 4,`tl1e provisionin .connection "with .s 'aid of -t-lleatten dant'l onjtliefloadlgetting doi'vn, erank aimslandtheir f connections,l of a 'to operatedeviees'positionedata lo\ '-".2poix 1t` k.ratchetoi1 `said rocklsliaft 'and apawlon .a 'f on the loadcras is'necessaryin ce1-tain)prior 'relatively stationary part of thc hay loader 5 'constructionsg-tbat the several operations ,arrangedto engage tllcfratcliotto hold said maybe' performed quicklyfand easily vand cleviatorfsection raised to intermediate powith coinpaatix-ely little 'elort.' ontl'ieg part j of Pthe attendant and ;`that' tl1 ...Structure comprises suchfex'vl part @constructed thatrf. 1 't11ey.-may bej'prodncec acorn arafrvely flow cost,1 ''onseq nently..not gnaterialyraffeet-f L ingthe; Inannfaturingcostl 'o fgfa hayy .loader` f 'fbleredtlitlg heforegoingconveys' a' clear/understandingof.-the, :objects- :fpref '15 acediabove-and while L hax "illustrated but e ffsrouldobe undemoodtllat'changesrniglitfbe''inadeinf details of construction; rithut'fdpartilglhaft"extendingitran thedeaflfcenter position -of said crank arms.

-GL- Inga hay loader -as setforth inclairn 4, the V proviSion--of 'ai-'stop'.on a relatively stationary partfofftlieallay, loader, 'for limitingr the swingingii t dete'rm in holding lpos/ition'fftliercof.

.vator trarne havingy ers'ely beneath theele-v yend,A a. connectio'nlbetween each crankarm ein'ent ot the crank' connec'# d le'adfcen'tei"` lposition yto hold 'a lhay loader, .in combinationfa niain 'inally'tendingto operatesaiddevice vtoward inclined side -bars .and uprightside .bars

""framefis'raised at the deliery end said der) bars an'dextending. above thelatter,i a pulley, g 'ic'eis lautomatically operatedtoii'ard dead. 'mounted en tlleupper-endlof eachiupri-ght i center position'- t-h'old tvlleff'sameIilisedkf/f '2.' In a hay loader-asset" forth-in claim 1;- side .jbars, an inclined felevato'r frame. at-

the' provision of means V in. connerie-ion 'with' tackedto'saidcross-bar-andllaving a pivoted said opcrating'devic'efor holding saifl'lfpf-me delivery end fsection adaptedto be swung raised in intermediate positions less than-the rerticallyto raise and lower its'delivery end,

40 position 'of-.said device; Y said inclined-sidelines, acrank-arm on each In a bayloader as-'sfet forth in claim 1,A the provision. in onneotionwith jsa'idfopl crank-arxnand tliepivoted elevator section, eraf-ingd'e\'ice,'.of an ratghet and deten fori eacli'con'nectionfbeing'trained over the pnlholding Saidframe raised inintern-iediate" ley .at'the adjacentsde of the franfe; and positions belov 'the elevation-corresponding 'means'lwliereby saidsh'aft may `beturned to .t-the' dea'dcenter position o'said de v'ic. rase'the pivoted elevator section 1f-Ina hayloader-,Gin conibinatiomaman o'peration of said connections. i i fi-ame', an elevator frame' thereon lncludm'g 9. In a hay loader, mcombination with an a -pi-\"oted d elweer end s etion vadapted to be eley'at'or'frame having a plvoted delivery end tmn" said roiglc-slmft tofraiee said' 'elevator raifsed position', and a coiled spiral spring on scctioi'i.- said crank .arms and emmectiensl the crank-'shaft coiint'eractingl the Weight of srrvinrirlicn. in dead center relation to hold '.tliepi-Yoted elevator section. ..1 said delivery end section raised, and springi 10.11111 hay loader.'l in combination with menne no rn'mlly under a. tension -.t aid in anelevator frame havingfa pvoted delivery y rai-sing tbe elevator section and serving when end section adapted lto be raised and lowered,

ward t heir dead .Conterholding positions. In a hay loader' as 'set forth in clznnr crank-arln is limlted vbeyond 'aldeadcenter novexnentof said crank;arnis" efthereby. thc'proper dead center' 'elevation eorrespondingtd theV dead center a shaft interposed between and vmounted on 'pvo'ted' (iterator. sc'ction,1n` eans operable to position to hold the pivoted section in the s'itions`- below the elevation; corresponding to the raisedposition," and'springmeans lnorf. 'franne ineludingforwardly and' upwardly 'its (lead-reenter"position .wl 1 "ereby`4 whensad -fixed to the npperends of said inclined side :Sidebarg across-bar connecting said upright :im tlifrougli and., haring a nected `t Said; iivoted section to raise the K said sofi-tion is raicd by its delivery end to of a crank-shaft the crank-arm'offwhch is' i operate said crank 4arms automatically to.- connectcd to said pivoted sectlon, to raisethe latter, means whereby movementof the 105 endjof saidsha'ft, aronnection between each,

position tol-hold the pivoted section in the' raised position, and a coiled spiral spring on the cranksshaft counteracting the weigh-t of the pivoted elevator section and adapted Y to automatically move said crank-arm beyond said dead-center position when said pivoted elevator section has been raised.

11. In a hay floader, an elevator frame 'having a-pivoted delivery end section arranged to be='raised and lowered for cooperl ation with a hay receiver, such as a rack, and

means for automatically holding said elevator delivery end section in raised position connected to the'pivoted section to raise the latter, means f whereby` movement y of the.

A crank arm is limited so as not to go beyond a dead center position whereinA theA pivoted section is -held in raised position, andmeans counteracting the Weight of the pivoted-ele vator section and serving automatically to move said crank-arm toward said dead center position when the pivoted elevator section 1s raised'.

13. In -a hay loader, in combination, a-

main frame, an elevator fra-me thereon having a pivot-ed delivery endv section adapted to'be raised and lowered, a transverse shaft on the main frame having a crank-arm at each end, a connection .between each crankarm and the adjacent sideof the pivoted section at the delivery end thereofadapted by turning movement of said shaft to raise said'section, a coiled 'spiral' spring on said shaft connected at one end to a part fixed with respect to the main frame and at its opposite end to said shaft, one of said spring rconnections being adjustable to increase the.

to counteract the' weight of the pivoteend.

s rino* tension said s rino servin section.

14. A hay loader as set forth in claim 13 in which said crank connections are movable nections in the locked position,

CALVIN n. Davis. 

